The number 25010
25010 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 41 × 61. Divisors (16): 1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 410, 610, 2501, 5002, 12505, 25010.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
25010 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
25010 is composite. Its prime factorisation is
- 3
The divisors add up to 46872; without 25010 itself that is 21862, so 25010 is deficient (21862 is less than 25010). Euler's totient φ(25010) = 9600 numbers up to 25010 share no factor with it.
- 4
The digits of 25010 add up to 8, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 157 steps to reach 1.
LaTeX source of the formulas on this page
\[ 25010 = 2 \times 5 \times 41 \times 61 \]
25010 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 46872 |
| Euler totient φ(n) | 9600 |
| Square | 625500100 |
| Cube | 15643757501000 |
| Square root | 158.145503 |
| Digit sum / digital root | 8 / 8 |
| Collatz steps to 1 | 157 |
| Scientific notation | 2.501 × |
25010 in other forms
| Form | Value |
|---|---|
| In words | twenty-five thousand and ten |
| Binary (base 2) | 110000110110010 |
| Octal (base 8) | 60662 |
| Hexadecimal (base 16) | 61B2 |
| Base 3 | 1021022022 |
| As time | 25010 seconds = 6 h 56 min 50 s |
Is 25010 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (25010 ÷ 2 = 12505) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (25010 ÷ 5 = 5002) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (25010 ÷ 10 = 2501) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 25010 a prime number?
No. 25010 = 2 × 5 × 41 × 61, so it is divisible by 2.
What are the factors of 25010?
1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 410, 610, 2501, 5002, 12505, 25010.
What is 25010 in binary?
110000110110010 (hexadecimal 61B2, octal 60662).
What is the square root of 25010?
About 158.1455.
Is 25010 divisible by 3?
No. Its digits add up to 8, which is not a multiple of 3.
What is special about the number 25010?
It is a composite number with 16 divisors.